What is the CIE or "boletín eléctrico"?
The "Certificado de Instalación Eléctrica" (CIE), better known as "boletín eléctrico", is a mandatory official document that certifies that an electrical installation is in good conditions and complies with all the technical requirements demanded by the competent administrations and electrical companies. All homes, whether new or second hand, and businesses that have a low voltage electrical installation, must have their corresponding "boletín eléctrico" in force, showing the maximum power allowed and the owner's data.